Final Fantasy Type-0 is set within Orience, a land divided between four nations or "Crystal States". Each nation has crystals of power based on the Four Symbols, which are in turn their national emblems. The Dominion of Rubrum uses the Vermillion Bird Crystal, which controls magic; the Militesi Empire controls the White Tiger Crystal, containing the power of science and weapons; the Kingdom of Concordia uses the Azure Dragon Crystal, containing the power of Dragons; and the Lorican Alliance is home to the Black Tortoise Crystal, containing the power of shielding. Each nation has an academy, or Peristylium, to research and protect the country's respective crystal.[25] The crystals have the ability to mark humans as their countries' servants. These servants, called l'Cie, are branded with a symbol and are given a "Focus", a task to complete. While blessed with long life and the ability to transform into crystal, l'Cie are cursed to lose their memories over time.[26] The people of Orience also lose their memories of the dead so they will not be held back by any past regrets and continue strengthening their souls through conflict, a mechanism put in place by the crystals for the convenience of the deities who crafted them.[3][27] The main aim of many characters is to become Agito, a legendary figure who will appear and save the world from Tempus Finis, an apocalyptic event that will destroy Orience.[28] The main characters of Final Fantasy Type-0 are Class Zero, an elite group of 14 students from the Vermillion Peristylium. The first 12 are card wielder Ace, flute wielder Deuce, the archer Trey, magic-gun wielder Cater, the mace-wielding Cinque, scythe wielder Sice, whip wielder Seven, martial artist Eight, spearman Nine, katana wielding Jack, swordswoman Queen and dual pistol wielding King. The last two, Machina Kunagiri and Rem Tokimiya, double as narrators and the focus for the game's main subplot. Supporting Class Zero are their mentor Kurasame Susaya, and Arecia Al-Rashia, Class Zero's former mentor and the overseer for magical development at the Vermillion Peristylium. Other important characters from Rubrum are Khalia Chival VI, the current leader of Rubrum and headmaster of the Vermillion Peristyrium, and the l'Cie Caetuna. Multiple Militesi figures, led by Marshal Cid Aulstyne, act as the game's main antagonists. Other important characters include the Concordian queen Andoria, Gala, leader of the Rursus Army and the instigator of Tempus Finis, and Joker and Tiz, two mysterious figures who observe the events of the game. Marshal Cid Aulstyne leads the army of Milites against the other nations of Orience, launching a devastating attack against the Vermillion Peristylium and neutralising the Vermillion Bird Crystal using a crystal jammer. Class Zero, immune to the effects of the jammer, repel the invasion.[29] During the conflict Izana Kunagiri, Machina's older brother, is killed while on a mission for Class Zero. This event later creates a rift between Machina and Class Zero. Coordinated by Kurasame and Arecia Al-Rashia, Class Zero plays a key role in freeing Rubrum's territories and launching counterattacks in alliance with Concordia, while Lorica's capital is destroyed by a Militesi bomb. Concordia's queen then forces a ceasefire between the remaining nations.[30] During peace talks in the Militesi capital, Class Zero is framed for Andoria's murder, resulting in Concordia's puppet government and Milites launching a united assault on Rubrum.[31] During their flight, Machina storms off after clashing with Class Zero, and becomes a White Tiger l'Cie to protect Rem from his brother's fate before returning to them. The White Tiger Crystal's will eventually forces him to leave.[32] With help from its l'Cie soldiers and Class Zero, Rubrum destroys the forces of Concordia and Milites, uniting Orience under its flag.[33][34] This triggers the arrival of Tempus Finis, with the Rursus Army emerging from the magical fortress Pandaemonium to wipe out Orience's population.[35] Cid and Class Zero each travel to Pandaemonium: Cid attempts to become Agito and is transformed into the Rursus Arbiter by Gala, while Class Zero resolve to halt Tempus Finis. As Class Zero face the trials of the Arbiter, the Vermillion Bird Crystals offers them the chance to become l'Cie. Class Zero refuse the Crystal's offer and Rem is made a l'Cie in their place. Machina and Rem end up fighting each other in Pandaemonium: Rem is mortally wounded, and she and Machina turn to crystal. Severely weakened by the trials and demoralized at seeing Machina and Rem's condition, Class Zero are initially unable to defeat the Arbiter. Machina and Rem's spirits give them the strength they need to defeat the Arbiter and halt Tempus Finis. Fatally injured, Class Zero spend their final minutes imagining their possible post-war lives.[36] They are found by Machina and Rem, who have returned to human form and, along with the rest of Orience, are allowed to remember the dead. In a post-credits sequence, it is said that the Crystal States fall into turmoil as the Crystals lose their powers. Machina and Rem unite Orience and rebuild the world, and Machina records Class Zero's history before dying with Rem at his side.[27][37][38] A second playthrough reveals that Orience is trapped in a stable timeloop created by Arecia and Gala, the respective servants of the deities Pulse and Lindzei, as part of an experiment to find the gateway to the Unseen Realm.[38] Competing with each other to open the gateway using a different method, both failed and reset the world for another attempt. By the events of Type-0, the experiment had been performed over six hundred million times.[39]